I used to use the entire humidifier. The one I had had all small fan and when set to the highest setting would push the generated fog out of the aimable top. I liked that becuase I could point it in a certain direction. I just built the entire unit into the prop. I never gave option to taking it apart. That was in first years of haunting before I knew what I know now.
Do you fear whats waiting in the woods?